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PhysicsWAEC SSCE2010

Options:

A.
B.
C.
D.
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Earlier discussion

2 older comments kept for context.

Khalil

If x is at the middle x=0 and v=wr or v=wA ....eq1
If x is at the end path, x=A and v=w√A²-A² ...eq2

Remember w=2πf
And f=1/T

Since the x is at the middle, we use the first equation.
Therefore; v=wA
Impute the data and arrive at your final answer which is B

Oluwaseun Adeyemi

V = WX = \(\frac{2\pi \times 0.25}{0.02} = 25\pi\)